【作者】 宋延沛； 李永凯； 王悔改；

【Author】 SONG Yan-pei~1,LI Yong-kai~2,WANG Hui-gai~1 (1.School of Materials Science and Engineering,Henan University of Science and Technology, Luoyang,471003,China; 2.Luan chuan Molybdenum Company,Luanchuan 471500,China)

【机构】 河南科技大学材料科学与工程学院； 栾川钼业公司；

【摘要】 采用MMS-1G高速销-盘摩擦磨损试验机和带能谱的扫描电镜,研究了60和80m/s两种滑动磨损速度下载荷对再生WC_P/Fe-C功能复合材料高速摩擦磨损性能的影响,探讨了再生复合材料在试验条件下的磨损机理。研究结果表明,在60和80m/s两种滑动磨损速度下,再生复合材料的滑动磨损率均随外加载荷的增加而增大,摩擦系数则随外加载荷的增加而减小。在相同载荷下,再生功能复合材料在80m/s滑动速度下的磨损率明显高于60m/s滑动速度下的磨损速,而80m/s滑动速度下的摩擦系数则低于60m/s滑动磨损速度下摩擦系数。低载荷下再生功能复合材料的磨损机理为犁沟,磨粒磨损和表面层剥落,高载下为氧化磨损和疲劳磨损,并伴随有粘着磨损。更多还原

【Abstract】 Effect of loads on high-speed fiction and wear properties of recycled WC_P/Fe-C functional composites were investigated by MMS-1G high-speed pin-dish friction-wear tester and TEM at the sliding velocities of 60 and 80m/s in present work.Wear mechanism for the recycled functional composites was discussed under the testing condition.The results showed that the wear rates of the recycled functional composites under the two sliding velocities increased with the increasing load,and their friction coefficients decreased with increase of the loads.Under same load,the wear rate for the recycled functional composites was higher at the sliding velocity of 80m/s than that of at the sliding velocity of 60m/s,and the friction coefficient was lower at 80m/s than at 60m/s.Wear mechanism of the recycled functional composites were mainly micro-cutting wearing,grain wearing, surface peeling off at lower loads and oxidation wear and fatigue wear,which is accompanied by adhesive wear at higher load.更多还原